The blood calcium level is lowered by the dificiency of

Options

A. thyroxine
B. calcitonin
C. parathormone
D. both a and b

Answer

C

Explanation

parathomone secreted by parathyroid gland regulates the level of calcium in the blood. It stimulates the release of calcium from the bones into the blood. Increases calcium absorption from the intestine into the blood and it also increases calcium reabsorption from the nephrons into the blood Therefore, its deficiency leads to low blood calcium level.